| /* Determine protocol families for which interfaces exist. Generic version. |
| Copyright (C) 2003-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <ifaddrs.h> |
| #include <netdb.h> |
| #include <stdint.h> |
| |
| void |
| attribute_hidden |
| __check_pf (bool *seen_ipv4, bool *seen_ipv6, |
| struct in6addrinfo **in6ai, size_t *in6ailen) |
| { |
| /* By default we have no way to determine information about |
| deprecated and temporary addresses. */ |
| *in6ai = NULL; |
| *in6ailen = 0; |
| |
| /* Get the interface list via getifaddrs. */ |
| struct ifaddrs *ifa = NULL; |
| if (getifaddrs (&ifa) != 0) |
| { |
| /* We cannot determine what interfaces are available. Be |
| pessimistic. */ |
| *seen_ipv4 = true; |
| *seen_ipv6 = true; |
| return; |
| } |
| |
| *seen_ipv4 = false; |
| *seen_ipv6 = false; |
| |
| struct ifaddrs *runp; |
| for (runp = ifa; runp != NULL; runp = runp->ifa_next) |
| if (runp->ifa_addr->sa_family == PF_INET) |
| *seen_ipv4 = true; |
| else if (runp->ifa_addr->sa_family == PF_INET6) |
| *seen_ipv6 = true; |
| |
| (void) freeifaddrs (ifa); |
| } |
| |
| |
| void |
| __free_in6ai (struct in6addrinfo *in6ai) |
| { |
| /* Nothing to do. */ |
| } |
| |
| |
| #ifdef IS_IN_nscd |
| uint32_t |
| __bump_nl_timestamp (void) |
| { |
| return 0; |
| } |
| #endif |
